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seen to govern an anaerobic treatment process to control an anaerobic treatment process
seen to govern an anaerobic treatment process to control an anaerobic treatment process
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机译:被视为控制厌氧处理过程以控制厌氧处理过程
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摘要
The invention relates to a method of treating wastewater from the manufacture of peroxide bleached mechanical or chemi-mechanical pulp. The method comprises a hydrolysis step, a methane fermentation steps and an aerobic step. After the hydrolysis and methane fermentation steps, sludge is separated from the wastewater and partially recycled to the hydrolysis step. The redox potential of the outgoing water from the hydrolysis step is continuously measured and controlled to a value between -400 and -260 mV by regulating the amount of sludge recycled or by passing ingoing wastewater directly to the aerobic treating step.
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